Home / 340,332,139.20-510,498,208.80-211,191,976.20

Finding the Fourth Proportional to 340,332,139.20, 510,498,208.80 and 211,191,976.20

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Solution

The fourth proportional to 340,332,139.20, 510,498,208.80 and 211,191,976.20 is: 316,787,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,332,139.20 : 510,498,208.80 = 211,191,976.20 : x
  2. Step 2: Convert to fraction form
    340,332,139.20/510,498,208.80 = 211,191,976.20/x
  3. Step 3: Cross multiply
    340,332,139.20x = 510,498,208.80 × 211,191,976.20
  4. Step 4: Simplify right side
    340,332,139.20x = 107,813,125,563,032,224
  5. Step 5: Solve for x
    x = 107,813,125,563,032,224/340,332,139.20
  6. Step 6: Final answer
    x = 316,787,964.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.